JPH01288440A - Decorative material - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a decorative material that is rich in natural beauty and has a painted feel.

[Prior art] Conventionally, in the production of decorative materials, there has been a method of using matte ink and gloss ink together in order to create a three-dimensional effect and create a feeling similar to natural materials such as natural wood. The resulting product still lacks three-dimensional depth. Another method for creating three-dimensional depth is to print a pattern on a base material, form a transparent synthetic resin layer, and then emboss it. However, the gloss is determined by the embossing, making it difficult to obtain the desired design feel.

[Problem to be solved by the invention]

An object of the present invention is to solve the above-mentioned problems of the prior art and to provide a decorative material that has a material feel and three-dimensional appearance similar to those of natural materials such as natural wood, and has a painted appearance.

[Means for Solving the Problems] The present invention for achieving the above objects sequentially laminates a synthetic resin layer, a concealing solid printing layer, and a pattern printing layer on a base material and emboss them, and then further emboss the transparent layer. This is a decorative material characterized by being formed by sequentially laminating a synthetic resin layer having the following properties and a gloss adjustment layer.

To explain the decorative material of the present invention with reference to drawings, a synthetic resin N2, a concealing solid printing layer 3, and a pattern printing layer 4 are sequentially laminated on a base material 1, and after embossing 5 is applied, a transparent synthetic resin layer is added. 6 and gloss adjustment layer 7 are sequentially laminated.

The embossing is the grain of natural wood, fibers, and minute irregularities in the shape of lines, and when used as a wood grain decorative material, it should have a texture, shine, and depth similar to natural wood, and have a painted feel. A certain cosmetic material was obtained. When a glittering ink is used in the pattern printing layer, the - layer becomes a decorative material that looks similar to natural wood.

Various papers can be used as the base material for the decorative material of the present invention, such as tissue paper, bleached or unbleached kraft paper, high-quality paper, reinforced paper (latex-impregnated paper), mixed paper mixed with synthetic resin, There are titanium paper, linter paper, paperboard, gypsum board paper, etc. Plastic films can also be used, such as polyethylene, polypropylene, polyvinyl chloride, polyvinyl alcohol, polyethylene terephthalate, polycarbonate, nylon, polystyrene, ethylene-vinyl acetate copolymer, ethylene-vinyl alcohol copolymer, and ionomer. There are plastic films such as. Other materials include wood, plywood, wood G6 materials such as verdicle board, gypsum base materials such as gypsum board and gypsum slag board, fiber cement board such as pulp cement board, asbestos cement board, wood chip cement l-board, GRC, concrete, and iron. Metal foils or sheets of , aluminum, copper, etc. can also be used. Of course, base materials made of composites of the various materials listed above can also be used.

The synthetic resin layer provided on the base material may include polyolefin resins such as polyethylene, polypropylene, ethylene-vinyl acetate copolymer, and ionomer, thermoplastic resins other than the above such as saturated polyester and polyvinyl chloride, and unsaturated polyester resins. A thermosetting resin selected from thermosetting resins such as polyurethane resin and polyurethane resin may be used.

To form a synthetic resin layer, a coating method such as extrusion, dill coating, gravure coating, etc. is selected depending on the physical properties of the synthetic resin used.

In order to achieve the purpose of creating depth by embossing, the synthetic resin layer needs to have a thickness of 5 mm or more, preferably 20 μm or more.

The thicker it is, the greater the effect, but even if it exceeds 5 meters, it will be more effective.''
The second method is not preferred because no improvement in effectiveness can be expected and the amount of material required becomes excessive. When using a polyolefin resin with poor adhesion as the synthetic resin layer, it is preferable to employ an extrusion coating method, and it is also advisable to coat it with an anchoring agent such as alkyl titanate or polyethyleneimine prior to coating. Similarly, it is advisable to perform a treatment to improve adhesion on the negative side of the synthetic resin layer. For example, when a synthetic resin layer is formed from a polyolefin resin, it is desirable to perform corona discharge treatment to make the surface of the synthetic resin layer have a "wetting index" of 38 dyne/cTA or more, thereby improving the adhesion of printing ink.

The decorative material of the present invention is generally manufactured by sequentially laminating each layer on a base material. The layers may be laminated in sequence at the same time as the synthetic resin layer is formed, or the synthetic resin may be laminated on either side,
After that, it is also possible to adopt a method such as crimping the two together.

As the printing method, gravure printing is advantageous when the base material is a flexible sheet, but other general printing methods can also be used. Furthermore, when the base material is plate-shaped, it is customary to apply silk screen printing or gravure offset printing, but other printing methods may be used.

The ink or coating composition for providing hidden solid printing and pattern printing is prepared by kneading a vehicle with a coloring agent such as a pigment or dye, a plasticizer, a stabilizer, other additives, a solvent or a diluent. Materials suitable as vehicles include cellulose derivatives such as ethyl cellulose, ethyl hydroxyethyl cellulose, cellulose acetate propionate, cellulose acetate, polystyrene, styrene resins and styrene copolymer resins such as polyα-methylstyrene, polyethyl methacrylate, Single or copolymer resins of acrylic or methacrylic esters such as ethyl acrylate and polybutyl acrylate, rosin, rosin-modified maleic acid resins, rosin-modified phenol resins, rosin ester resins such as polymerized rosin, polyvinyl acetate, coumaron resins , vinyltoluene resin MM, polyvinyl chloride, polyester, polyurethane, butyral resin, etc. Two or more of these may be used in combination. For base printing, an inorganic pigment such as titanium dioxide with good hiding performance is used as the main ingredient, and for pattern printing, an appropriate coloring agent is used.

Embossing is often used to express the conduit grooves in the wood grain, to reproduce the glossy condition of a painted board, or to combine these. If you want to express the feel of wood fibers, it is best to use hairline embossing along the direction of the wood grain. In order to express the fiber feel of natural wood with hairline embossing, it is preferable that the pitch of the hairlines be 300 μm or less. Of course, hairline-like embossing and embossments such as conduit grooves can coexist; for example, embossing that expresses the feeling of ``Uzukuri'', mirror-like embossing to create a gloss, and embossing that eliminates the gloss. Materials such as those with a satin finish are suitable when printed with wood grain patterns. If you want to express the feel of leather, a material that imitates the roughness of the surface of the skin, a satin finish, or a surface that is almost mirror-like is suitable. Items that imitate unevenness and cracks, and mirror surfaces are suitable for expressing polished stones. In the case of cloth, plain weave, diagonal weave, satin weave, or a combination of these, with uneven texture, is suitable.

As the transparent synthetic resin layer, polyolefin resins such as polyethylene, polypropylene, ethylene-vinyl acetate copolymer, and -y ionomer, thermoplastic resins other than the above such as saturated polyester and polyvinyl chloride, unsaturated polyester resins, and polyurethane resins can be used. A thermosetting resin selected from the following may be used.

In addition to these, ultraviolet curable resins and electron beam curable resins can also be used.

The gloss adjustment layer protects the surface of the decorative material and imparts a desirable gloss to the surface of the decorative paper. The gloss adjustment layer can be formed by applying a paint using an appropriate vehicle. As a vehicle, resins such as polyurethane, acrylic resin, amine resin, nitrocellulose, alkyd resin, polyester, polyvinyl butyral, melamine resin, cellulose acetate, polyvinyl chloride, polyvinyl acetate, polystyrene, polyvinyl alcohol, etc. are used alone or in combination. can do. Usually, a suitable amount of a matting agent is dispersed in the paint forming the gloss adjustment layer to give the desired degree of matting, but a gloss type paint containing no matting agent at all is sometimes used. Matting agents that can be used include mica, silica, alumina, calcium carbonate, diatomaceous earth, silica sand, and inorganic hollow bodies such as shirasu balloons.

To form the gloss adjustment layer, gravure coating, roll coating, air knife coating, spray coating, flow coating, etc. may be used, and when forming it in a pattern, it may be formed using the same method as when forming the pattern printing layer. It depends on the printing method. The gloss adjustment layer can also be formed by combining two or more paints with different matte degrees.

In this case, in addition to providing a gloss layer on a matte layer, a matte layer may be provided on top of a gloss layer, or a matte layer and a gloss layer may be separately provided on the same surface. Alternatively, either the matte layer or the glossy layer may be provided solidly and the other layer may be provided in a pattern. When the gloss adjustment layer is arranged in a pattern that matches the pattern underneath,
Increases visual three-dimensionality.

If desired, a glittering colored layer is provided on the concealing solid printing layer or the pattern printing layer. As a result, the shine of wood, the luster of leather, the shine of stone, and the luster of cloth are well reproduced.

Examples of pigments that form the glitter colored layer are as follows. (a) What is called pearl pigment, specifically the inner part of shellfish or crushed pearls, mica,
Mica fine particles baked with Tie or iron oxide, (B) Metal powder, specifically copper, aluminum, brass, bronze, gold, silver, etc., preferably 1 to 120μ fine particles, (H) ) debris of vapor-deposited plastic film,
For example, metals such as those mentioned above, usually aluminum, are vapor-deposited on polyethylene terephthalate film and then crushed (silver-colored powder), and after vapor-deposited, a transparent yellow coating is applied and then crushed (all-color powder), which shines. Color pigments are selected according to the luster, luster, and brilliance of what you are trying to reproduce.
Two or more types can be used in combination as necessary.

(Example) A thin paper (basis weight 40 g/i") was used as a base material, a high density polyethylene resin (Milason 14, manufactured by Mitsui Polychemicals) was used on top of the paper, and a polyethylene resin layer (50 II m At this time, the surface of the polyethylene resin layer was subjected to corona treatment so that the wetting index was 38 dyne/cm or more.

On this corona discharge treated surface, using printing ink (manufactured by Showa Ink), a concealing solid printing layer and a glittering colored layer are both applied using a gravure solid plate, and then printing ink (manufactured by Showa Ink) is applied. The pattern was printed using.

The printed surface of the printing paper thus obtained was heated to 120°C to soften the polyethylene resin layer, and the surface temperature was 20°C.
°C hairline embossing roll (width direction 100~2
Embossing was performed using an embossing machine equipped with 00μ) to obtain decorative paper.

A polyethylene layer was provided on the embossed surface of the resulting decorative paper in the same manner as the above polyethylene layer was provided, and a gloss-adjusting varnish (manufactured by Showa Ink) was used on the surface of the polyethylene layer, and a solid pattern was printed using a gravure printing method. Apply printing.

The decorative material obtained as described above has the fibrous feel, depth, and shine of natural wood, and has a painted feel.

[Effect of the invention] The decorative material of the present invention has a physical unevenness due to embossing,
It gives a visual sense of depth and texture, and the synthetic resin layer laminated after embossing gives it a painted feel, making it similar to natural materials such as natural wood, and can be used as a decorative material.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a decorative material that is an embodiment of the present invention. l... Base material, 2... Synthetic resin layer 1.3... Concealing solid printing layer, 4... Pattern printing layer, 5... Embossing, 6
...Transparent synthetic resin layer, ■...Gloss adjustment layer.

Claims (3)

[Claims] (1) After sequentially laminating a synthetic resin layer, a concealing solid printing layer, and a pattern printing layer on a base material and applying embossing, a transparent synthetic resin layer and a gloss adjustment layer are further laminated in sequence. Characteristic cosmetic materials. (2) The decorative material according to claim 1, wherein the embossing is fine irregularities in the shape of natural wood, fibers, and hairlines. (3) The decorative material according to claim 1 or 2, characterized in that a glitter colored layer is provided on the concealing solid printing layer or the pattern printing layer.